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MTJ current sensors have broad prospects in the large scale distributed monitoring of the smart grid. In this paper, we researched the design and optimization of magnetic ring for MTJ current sensors to suppress the susceptibility of the spatial position. The specific improvement and parameters of magnetic ring were also researched.
The intriguing magnetic states — skyrmion and skyrmion lattice — have been observed and created in helical magnetics, such as MnSi, Fe1−xCoxSi, the helical FeGe and monolayer Fe film [1-3]. The skyrmions in helical magnets are always associated with the chiral magnetic interaction, namely Dzyaloshinskii-Moriya interaction (DMI). However, several novel works present new approaches to create the skyrmion...
In the processing fabrication of MTJ stacks, the Neel and magnetostatic coupling induce a strong interlayer coupling field along the hard-axis direction, and the utilization of the magnetic bias field along the easy-axis direction makes the response of MTJ nonlinear. In this paper, we researched the influence of the interlayer coupling field and permanent bias field on the linearity of MTJ magnetic...
We have observed the transport properties in magnetic tunnel junction with the multilayered structure: (50 nm)/Al-O (1 nm)/CoFeB (5 nm)/Ta (10 nm)/Ru (10 nm). The maximum normal tunneling magnetoresistance (TMR) ratio was found to be 12.4% at a temperature range around 100 K, and the maximum inverse TMR ratio was observed to be 3% at a temperature of 5 K . The inverse TMR decreases with increasing...
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